Antiseptic active cationic dye and its preparing method
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A reactive dye and cationic technology, which is applied in the field of antibacterial cationic reactive dye and its preparation, can solve the problems of lack of affinity for cotton fiber, loss of antibacterial properties of dyes, easy hydrolysis and other problems, and achieve excellent antibacterial durability and excellent dyeing affinity.
Inactive Publication Date: 2009-11-18
DONGHUA UNIV
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However, the dye lacks affinity for cotton fibers, and because the quaternary ammonium salt in the molecule is combined with the dye parent through an amide bond, it is easily hydrolyzed, so that the dye loses its antibacterial properties
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Embodiment 1
[0018] a. Dissolve 17g of 1-aminoanthraquinone and 20g of trifluoro-s-triazine in 200ml of nitrobenzene organic solvent, heat the mixture to 90°C, and raise the temperature to 120°C after 1 hour, at this temperature Continue to stir for about 1 hour, cool to 25-30°C, filter to obtain the dye intermediate 1-(4,6-dichloro-2-amino-s-triazine)aminoanthraquinone, wash with methanol, and dry in a vacuum dryer;
[0019] b. the dye intermediate 1-(4,6-dichloro-2-amino-s-triazine) aminoanthraquinone 10g prepared in step a is dissolved in 150ml DMF (N,N-dimethylformamide) organic solvent, heated to 55°C, slowly drop 5.5 g of 1-amino-3-dimethylaminopropane in 30 minutes, and then react for 2 hours. After the reaction is complete, the solvent DMF is evaporated in a vacuum evaporator to obtain the dye intermediate 1-( 4-chloro-6-(1-amino-3-dimethylaminopropane)-2-amino-s-triazine) aminoanthraquinone, dried in a vacuum dryer;
[0020] c. Dissolve 9 g of the dye intermediate prepared in ste...
Embodiment 2-21
[0024] Example 2-21, the synthesis method of the antibacterial cationic reactive dye is basically the same as that of Example 1, and see Table 1 for other conditions.
[0025] Table 1 Examples 2-21
[0026]
[0027]
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Abstract
The invention relates to a class of antibacterial cationic reactive dyes and a preparation method thereof. The dye matrix is an anthraquinone structure, the active group is a chloro-s-triazine or a fluoro-s-triazine, and the water-soluble group is a quaternary ammonium salt structure with a long carbon chain. The chemical structure is as follows: This type of dye can be used for cellulose fibers , protein fiber, polyamide fiber, acrylic fiber, cationic dyeable polyester fiber dyeing and antibacterial finishing, with high antibacterial effect, excellent color fastness, antibacterial durability. The preparation method of the dye includes: a. dissolving aminoanthraquinone A and trichloro or trifluoro-s-triazine in a nitrobenzene organic solvent, heating to 90°C, rising to 120°C after 1 hour, cooling and filtering to obtain the dye intermediate B; b. Dissolve the dye intermediate B prepared in step a in DMF organic solvent, add tertiary amine intermediate C, react at 55°C for 3-4 hours, evaporate the solvent DMF to obtain dye intermediate D, and dry it in vacuum c. Dissolve the dye intermediate D obtained in step b in DMF organic solvent, add haloalkyl E, heat to about 120°C, react for 4-5 hours, evaporate the solvent DMF, wash with ether, and recrystallize with ether-ethanol , Dye F was obtained and dried in vacuum. When this type of dye is used for textile dyeing, it can also endow textiles with certain functions, and has the advantages of water saving, energy saving, and ecological protection.
Description
technical field [0001] The invention belongs to the fields of dye synthesis, textile dyeing and finishing, and in particular relates to an antibacterial cationic active dye and a preparation method thereof. Background technique [0002] Textile dyeing and finishing are two important wet processing processes, while traditional textile dyeing and finishing are carried out separately, which has the disadvantages of high cost, high energy consumption and large amount of sewage discharge. The dyeing and finishing technology that combines dyeing and functional finishing in one bath is of great significance for reducing production costs, saving energy, reducing waste water discharge, and protecting the ecological environment. Therefore, many experts at home and abroad have carried out a lot of research in this field, and have achieved certain results in the research of dyeing, antistatic, flame retardant, anti-ultraviolet, shrink-proof and anti-wrinkle finishing in one bath. Howev...
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